1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4b22237e0c7f471a5d77688a2b5ed0b711130a8cec854ce780c254c6c6c9f8e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2518b4fd-1ab9-4a19-b616-ede3e253c605.json and https://artists.proofprofile.net/proofs/artist/2518b4fd-1ab9-4a19-b616-ede3e253c605.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5d907a6ff0ef3f1fdb20163292b29773d9fe9235f352aa196f127bfdc6209d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA61959065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50f9c14c74fb9b1a7b24299f39c89fbdfe8e58af233d5485a439e27b26e5d67. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUYG1186284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdba01ae1a9f762ef0ee7dfabdccc2caf9ba8f11498d803f6c36f1a2d4776182. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASN1103007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3a2091fd1568ed5eed2af36c287a2cbc68782028986a9251fa15426c11aa11. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASN1103004.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908ee195566997ea5271a3e20c7ee3cdebbc7af63f518e8c98f447abc60d830c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASN0904843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76577b3f4a79f087880099d2ba20d976754d0712589293fa5e17f503645b55b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASN0904848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ee9a49bfcd1c1141ab55717767b47f09c660829cb445a3428f12a874ebd715. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASN0904842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752182487bf043a7db31d7abb507731df65a65817f35e280c50dbc0c13881d1c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA81927578.
The Prescription Mixtape, Pt. 2 (Dj Eddie Deville Remix)
The Prescription Mixtape, Pt. 1 (Dj Eddie Deville Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad3ecc273e92a0e51bbfaae9c1fe5f0dc648e3d2014bd05881343cc0d7545c4d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa174aae9be751d0d2349f1cc9ad9d28c51ed5de30d43b965aec8b5cec95795. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6693de5fd8569d5758b7b4b1b101037e72ac68f3e0a35bd7e5162caf75f706e3. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced40aa2866dcef31214f327344eebf39b51085160a3527d442ea12d740fbcb2. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f345c44d345fd817e701a5c3592dab76c0608a8481f97f3431033c25ba570e1. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8ea0106092be8d66ecb62bd15dd212a3e8e8b74b927e8a3490dc4b05369dbc. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c6526c815ed71513af4e5e1a65fc403f4957609f3365300ae5c988110fc086. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb7441b04a0623232c9af6ce555e549800f392b25e371cff73faec254956250c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a95a5eb3c8e9b296982bfbe29a6e5cad55ed1f43f9cbe40eff931b87bd9a2f. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf84f656a64c30cf9311bbb7810039469f4f53d3a67670f9608e5b3a4d22a36. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4028b29ec7bbf62044bc87e947117dff101cefa6ef735f782687ba00af64a4de. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51290cea2b0ab4a243db66c126331594cacafc2d799c56b67f8c04c1ce742f4a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf373bafe581eaa042c224e57603f74023f413d7f8e680d9fd3bde5422b1c1b8f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USJ3V0921017.
Me & My Hustle (20Th Anniversary Remastered Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af37322bfd1f04eca8374432012f034b1eb86d313f73adf061bfc530d887c3e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMER2168041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2dcb27a0a3484a3904783f117018f31b728c27e9caf527e43270b0913c77b8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMER2168048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e000a04a4b4d8854b8910a2c485a8cae52d92dac9cffe5bc101589b9b13f50f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMER2168038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c56af38157a2dd2a5117b73710a4231a8090a8dcfef022e6a99cac5d2985a2. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMER2168040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df81690ea72795de8848f209eba9efdba659b8cb890ce1ff6297f4bf944b357. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMER2168047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93f4746b2892726763c8771c7a88f31001a188d447e0687aa414913daea0e6f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2458723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63aa367ab6a1dbded367c0f47b555efb7e8fadc2b127cd5f8139ace9904458f1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92147462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0df722670014b011073d68b346cd6434596fa6743cbb38219e2c09faff4738c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAAZ1189007.